Biomass-derived microporous carbon with large micropore size for high-performance supercapacitors

Li, Yubing; Zhang, Deyi; Zhang, Yameng; He, Jin; Wang, Yulin; Wang, Kunjie; Xu, Yuhao; Li, Hongxia; Wang, Yi

doi:10.1016/j.jpowsour.2019.227396

Cited by 186 publications

(52 citation statements)

References 47 publications

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“…where, E (W h kg −1 ) represents specific energy, C (F g −1 ) denotes ASC specific capacitance, V (V) the potential window, P (W kg −1 ) implies power density, and t (s) denotes discharge time 28,29 .…”

Section: Fabrication Of Electrode Full-cell and Electrochemical Measmentioning

confidence: 99%

Marigold flower like structured Cu2NiSnS4 electrode for high energy asymmetric solid state supercapacitors

Isacfranklin

Yuvakkumar

Ravi

et al. 2020

Sci Rep

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The growth in energy devices and the role of supercapacitors are increasingly important in today’s world. Designing an electrode material for supercapacitors using metals that have high performance, superior structure, are eco-friendly, inexpensive and highly abundant is essentially required for commercialization. In this point of view, quaternary chalcogenide Cu2NiSnS4 with fascinating marigold flower like microstructured electrodes are synthesized using different concentrations of citric acid (0, 0.05 M, 0.1 M and 0.2 M) by employing solvothermal method. The electrode materials physicochemical characteristics are deliberated in detail using the basic characterization techniques. The electrochemical studies revealed better electrochemical performances, in particular, Cu2NiSnS4@0.1 M-CA electrode revealed high 1029 F/g specific capacitance at 0.5 A/g current density. Further, it retained 78.65% capacity over 5000 cycles. To prove the practical applicability, a full-cell asymmetric solid-state device is fabricated, and it delivered 41.25 Wh/Kg and 750 Wh/Kg energy and power density at 0.5 A/g. The optimum citric acid added Cu2NiSnS4 electrode is shown to be a promising candidate for supercapacitor applications.

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Section: Fabrication Of Electrode Full-cell and Electrochemical Measmentioning

confidence: 99%

Marigold flower like structured Cu2NiSnS4 electrode for high energy asymmetric solid state supercapacitors

Isacfranklin

Yuvakkumar

Ravi

et al. 2020

Sci Rep

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show abstract

“…In order to study further the structural characteristics of the prepared samples, their Raman spectra were provided in Figure 2(b). The characteristic peaks at 1590 and 1360 cm −1 are associated with the G‐band and D‐band for the crystallized graphitic sp 2 carbons and the defective/disordered graphitic structure, respectively 28,29 . The degree of graphitization of carbon materialsan can be estimated by calculating the intensity ratio ( I G / I D ) of the G‐band to the D‐band.…”

Section: Resultsmentioning

confidence: 99%

Poly(vinyl alcohol)‐assisted preparation of melamine resin‐derived thick plate‐like porous carbon for high‐performance all‐solid‐state supercapacitors

Liu

Niu

et al. 2021

J of Applied Polymer Sci

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A simple and efficient approach derived from melamine formaldehyde (MF) resin was explored to synthesize porous thick plate‐like carbon (TPC) using poly(vinyl alcohol) (PVA) as reagent and dispersant. Ultra‐large lateral dimension of over 100–150 μm is achieved with high nitrogen (12.4 at%)/oxygen (10.8 at%) content after MF prolysis at 700°C. The introduction of PVA provides abundant micro and mesopores inside TPC and the folded layered structure increases the specific surface area both of which are beneficial to improve the electrochemical properties of the electrode. The optimized TPC (MTPC‐0.2) shows remarkable rate capability as the current densities increased from 0.5 A/g (409.3 F/g) to 20 A/g (330.0 F/g). Further, the all‐solid‐state supercapacitors built from two identical MTPC‐0.2 electrodes delivers dramatically improved volumetric specific capacitance (8.6 F/cm3 at 1.2 mA/cm2) and volumetric energy density (1.20 at 21.42 mW/cm3) based on the total volume of device.

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“…To date, ACs have been the most used electrode materials in SCs due to their easy preparation methods, very high porosity, and SSA, and excellent electrical conductivity [ 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 ]. Both the biomass precursor and the preparation method are crucial for the ACs properties and greatly influence the final CEs’ electrochemical features (See Table 1 ).…”

Section: Biomass-based Electrodes For Supercapacitorsmentioning

confidence: 99%

“…In another work, flaxseed residue was used as raw material to produce AC for CE preparation [ 37 ]. The biomass was carbonized at 600, 700, and 800 °C under Ar atmosphere for 2 h. The ACs were further mixed with KOH (ratio of 1:4) and pyrolyzed at 700 °C under Ar atmosphere for 1 h.…”

Section: Effect Of the Pore Structure On The Electrochemical Propementioning

confidence: 99%

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A Short Review on the Electrochemical Performance of Hierarchical and Nitrogen-Doped Activated Biocarbon-Based Electrodes for Supercapacitors

et al. 2021

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Cheap and efficient carbon electrodes (CEs) for energy storage systems (ESS) such as supercapacitors (SCs) and batteries are an increasing priority issue, among other things, due to a globally increasing share of intermittent electricity production (solar and wind) and electrification of transport. The increasing consumption of portable and non-portable electronic devices justifies research that enables environmentally and economically sustainable production (materials, processing techniques, and product design) of products with a high electrochemical performance at an acceptable cost. Among all the currently explored CEs materials, biomass-based activated carbons (AC) present enormous potential due to their availability and low-cost, easy processing methods, physicochemical stability, and methods for self-doping. Nitrogen doping methods in CEs for SCs have been demonstrated to enhance its conductivities, surface wettability, and induced pseudocapacitance effect, thereby delivering improved energy/power densities with versatile properties. Herein, a short review is presented, focusing on the different types of natural carbon sources for preparing CEs towards the fabrication of SCs with high electrochemical performance. The influences of ACs’ pore characteristics (micro and mesoporosity) and nitrogen doping on the overall electrochemical performance (EP) are addressed.

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Biomass-derived microporous carbon with large micropore size for high-performance supercapacitors

Cited by 186 publications

References 47 publications

Marigold flower like structured Cu2NiSnS4 electrode for high energy asymmetric solid state supercapacitors

Marigold flower like structured Cu2NiSnS4 electrode for high energy asymmetric solid state supercapacitors

Poly(vinyl alcohol)‐assisted preparation of melamine resin‐derived thick plate‐like porous carbon for high‐performance all‐solid‐state supercapacitors

A Short Review on the Electrochemical Performance of Hierarchical and Nitrogen-Doped Activated Biocarbon-Based Electrodes for Supercapacitors

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